<!DOCTYPE html>
<html lang="cn-zh">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>
        {{ block title }} base {{ endblock }}
    </title>
</head>
<body>
{{ block body }}
body
{{ endblock }}
</body>

</html>